Multi-insert and metal sleeve assembly fixture and assembly method

Abstract

The embodiment of the present invention provides a multi-insert core and metal sleeve assembly jig and an assembly method. The multi-insert core and metal sleeve assembly jig comprises a first guide post, a second guide post, a guide block arranged at the first end of the first guide post and the second guide post, an upper pressing block arranged to match the guide block, a lower pressing block arranged at the second end of the first guide post and the second guide post, and a base for fixing the assembly jig. The multi-insert core and metal sleeve assembly jig and the assembly method can reduce damage to the insert core during the assembly process and crimp multiple insert cores at one time.

Description

Technical Field

[0001] The present invention relates to the processing or manufacturing of products related to the field of optical communications, and in particular to a multi-insert core and metal sleeve assembly fixture and an assembly method. Background Art

[0002] In recent years, with the development of communication technology, optical fiber and optical cable technology has also developed rapidly. The single ferrule needs to be protected by a metal sleeve to prevent the single ferrule from being damaged during subsequent use. At present, the assembly of the single ferrule and the metal sleeve is carried out by manual direct crimping. The specific process is: after placing the single ferrule into the metal sleeve, the worker directly presses the inclined surface of the single ferrule, and assembles the single ferrule and the metal sleeve together through pressure. This direct crimping assembly method needs to be directly crimped on the surface of the single ferrule with the polished end face during crimping. Therefore, it is easy to damage the end face. Once the end face is damaged, the single ferrule will be scrapped. Furthermore, the existing technology can only crimp one by one, and cannot crimp multiple at a time, and the crimping efficiency is low.

[0003] Therefore, in view of the problems that the existing direct crimping assembly method is easy to damage the ferrule and the single crimping efficiency is low, it is urgently needed to provide a multi-ferrule and metal sleeve assembly fixture and assembly method that can reduce damage to the ferrule during the assembly process and crimp multiple ferrules at one time. Summary of the invention

[0004] In view of the problems that the existing direct crimping assembly method is easy to damage the ferrule and the single crimping efficiency is low, the embodiments of the present invention provide a multi-ferrule and metal sleeve assembly jig and assembly method that can reduce damage to the ferrule during the assembly process and crimp multiple ferrules at one time. The multi-ferrule and metal sleeve assembly jig and assembly method can crimp multiple ferrules and metal sleeves at one time through the multiple holes set on the jig, thereby effectively improving the crimping efficiency. Furthermore, the multi-ferrule and metal sleeve assembly jig and method can make the upper surface of the metal sleeve flush with the end face of the ferrule through two crimping processes, so that the ferrule is not easily damaged during the crimping process.

[0005] A specific scheme of a multi-insert and metal sleeve assembly jig provided in an embodiment of the present invention is as follows: A multi-insert and metal sleeve assembly jig comprises: a first guide column and a second guide column, the first guide column and the second guide column are arranged in parallel and spaced apart; a guide block, arranged at the first end of the first guide column and the second guide column, for guiding the direction of the insert during the crimping process; a plurality of holes are arranged on the guide block, and the holes are used to accommodate the insert; an upper pressure block, arranged to match the guide block, and used as the first part for crimping; a lower pressure block, arranged at the second end of the first guide column and the second guide column, and used as the second part for crimping; a base, used to fix the assembly jig, and the second end ends of the first guide column and the second guide column are fixed to the base.

[0006] Preferably, the base is provided with an inverted T-shaped notch, and the inverted T-shaped notch matches the shape of the metal sleeve.

[0007] Preferably, four holes are arranged on the guide block.

[0008] Preferably, the four holes are arranged equidistant from each other.

[0009] Preferably, the four holes correspond one-to-one to the holes of the metal sleeve.

[0010] Preferably, the upper surface of the guide block is provided with a groove, and the lower surface of the upper pressing block is provided with a protrusion corresponding to the groove.

[0011] Preferably, the pressing block has a through opening in a region corresponding to the insert.

[0012] Preferably, the guide block and the upper pressing block are matched in an inverted T-shape.

[0013] The embodiment of the present invention also provides a method for assembling multiple ferrules and metal sleeves. The method comprises step S1: placing the metal sleeve into the inverted T-shaped notch on the base of the assembly jig; step S2: placing multiple ferrules into the metal sleeve, and during the placement process, the end faces of each ferrule are placed upward; step S3: placing the lower pressing block and the guide block in sequence, and during the placement of the guide block, accommodating the multiple ferrules into the multiple holes of the guide block; step S4: using the upper pressing block for crimping, so that the ferrule and the metal sleeve are assembled together to form a molded part.

[0014] Preferably, step S4 includes two crimping processes: the first crimping process is: using the upper pressing block to press the core until the core surface is flush with the guide block surface; the second crimping process is: removing the guide block and continuing to press with the upper pressing block until the core surface is flush with the metal sleeve surface.

[0015] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0016] The multiple ferrules and metal sleeve assembly jig and assembly method proposed in the embodiment of the present invention can crimp multiple ferrules and metal sleeves at one time through the multiple holes set on the jig, thereby effectively improving the crimping efficiency. Furthermore, the multiple ferrules and metal sleeve assembly jig and assembly method proposed in the embodiment of the present invention can make the upper surface of the metal sleeve flush with the end face of the ferrule through two crimping processes, so that the ferrule is not easily damaged during the crimping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a four-insert-and-metal-sleeve assembly jig provided in an embodiment of the present invention;

[0018] Figure 2 A left side view of a four-insert-and-metal-sleeve assembly jig provided in an embodiment of the present invention;

[0019] Figure 3 A top view of a four-insert-and-metal-sleeve assembly jig provided in an embodiment of the present invention;

[0020] Figure 4 The present invention provides a schematic flow chart of a method for assembling multiple ferrules and metal sleeves according to an embodiment of the present invention.

[0021] Notes in the attached drawings:

[0022] 100, assembly fixture 10, guide block 50, upper pressure block

[0023] 21, first guide column 23, second guide column 30, lower pressing block

[0024] 40, base 12, holes DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] like Figures 1 to 3 As shown, a three-dimensional view of a multi-insert and metal sleeve assembly jig provided by an embodiment of the present invention includes a front view, a top view and a left view. In this embodiment, the multi-insert and metal sleeve assembly jig 100 includes: a first guide column 21, a second guide column 23, a guide block 10 disposed at the first end of the first guide column 21 and the second guide column 23, an upper pressing block 50 matched with the guide block 10, and a lower pressing block 30 disposed at the second end of the first guide column 21 and the second guide column 23, which is used to fix the base 40 of the assembly jig 100.

[0028] In this embodiment, the first guide column 21 and the second guide column 23 are arranged parallel to each other and spaced apart, and the ends of the second ends of the first guide column 21 and the second guide column 23 are both fixed to the base 40. The first guide column 21 and the second guide column 23 are used as spatial guides and fixing devices for the assembly jig 100.

[0029] Continue to refer to Figure 3 As shown, the guide block 10 is used to guide the direction of the ferrule during the crimping process to prevent the ferrule from being skewed during the pressing process. The guide block 10 is provided with a plurality of holes 12 for accommodating the ferrule. The number of holes 12 can be set according to demand, such as 3, 4, 5, etc. In this embodiment, four holes 12 are provided on the guide block 10. Preferably, the four holes 12 are equidistant from each other. The four holes 12 correspond one-to-one to the holes of the metal sleeve, and the one-to-one correspondence here includes the spacing between the holes and the size of the holes themselves. The assembly jig 100 can crimp 4 ferrules and metal sleeves in one working process, so as to obtain 4 crimped molded parts in a single crimping. In this embodiment, the metal sleeve also has four through holes for accommodating the ferrule.

[0030] Continue to refer to Figure 1As shown, the guide block 10 and the upper pressing block 50 are matched with each other. In this embodiment, the shape of the guide block 10 and the upper pressing block 50 is an inverted T shape. The upper surface of the guide block 10 is provided with a groove (not shown in the figure), and the lower surface of the upper pressing block 50 is provided with a protrusion corresponding to the groove. Through the mutual matching of the groove and the protrusion, the guide block 10 and the upper pressing block 50 are precisely matched.

[0031] The upper pressing block 50 serves as the first part for crimping, and the lower pressing block 30 serves as the second part for crimping. The lower pressing block 30 is provided with a through opening in the area corresponding to the ferrule. The through opening design can not only avoid crushing the optical fiber in the ferrule during the pressing process, but also facilitate the realization of additional functions such as laser piercing. An inverted T-shaped notch is also provided on the base 40. The inverted T-shaped notch matches the shape of the metal sleeve. During the assembly process, the metal sleeve is placed in the T-shaped notch on the base 40.

[0032] like Figure 4 FIG. 1 is a flow chart of a method for assembling multiple ferrules and metal sleeves provided by an embodiment of the present invention. The method for assembling multiple ferrules and metal sleeves includes four steps, and the specific content of each step is described as follows.

[0033] Step S1: Place the metal sleeve into the inverted T-shaped notch on the base of the assembly fixture. In this embodiment, when the metal sleeve is placed, the lower surface of the base extending out will not bend the extra optical fiber, effectively preventing damage to the optical fiber.

[0034] Step S2: insert multiple ferrules into the metal sleeve, and during the inserting process, the end faces of each ferrule are placed upwards. In this embodiment, the metal sleeve also has multiple through holes for accommodating the ferrules.

[0035] Step S3: sequentially insert the pressing block and the guide block, and during the inserting process of the guide block, accommodate the plurality of inserts into the plurality of holes of the guide block. The number of holes on the guide block is equal to the number of through holes on the metal sleeve.

[0036] Step S4: Use the upper pressing block to perform crimping, so that the ferrule and the metal sleeve are assembled together to form a molded part. In this embodiment, the crimping of the upper pressing block includes two crimping processes. The first crimping process is: use the upper pressing block to press the ferrule until the surface of the ferrule is flush with the surface of the guide block; the second crimping process is: remove the guide block, and use the upper pressing block to continue pressing, so that the surface of the ferrule is flush with the surface of the metal sleeve. In this embodiment, the upper surface of the metal sleeve can be flush with the end face of the ferrule after crimping, which effectively prevents the end face of the ferrule from being damaged due to excessive force during crimping. Furthermore, after the crimping is completed, the upper surface of the metal sleeve is flush with the end face of the ferrule, which is also convenient for the subsequent removal of the metal sleeve.

[0037] An assembly jig and method for assembling multiple ferrules and metal sleeves provided in an embodiment of the present invention can crimp multiple ferrules and metal sleeves at one time through multiple holes provided on the jig, thereby effectively improving the crimping efficiency.

[0038] The multi-insert and metal sleeve assembly jig and method provided in the embodiment of the present invention can make the upper surface of the metal sleeve flush with the end surface of the insert through two crimping processes, so that the insert is not easily damaged during the crimping process.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A multi-insert and metal sleeve assembly fixture, characterized in that: The assembly jig comprises: A first guide post and a second guide post, wherein the first guide post and the second guide post are arranged in parallel and spaced apart; A guide block is provided at the first end of the first guide column and the second guide column, and is used to guide the direction of the ferrule during the crimping process; a plurality of holes are provided on the guide block, and the holes are used to accommodate the ferrule; An upper pressing block, matched with the guide block, and used as the first part for crimping; A lower pressing block, disposed at the second ends of the first guide column and the second guide column, and used as a second part for crimping; The base, the second ends of the first guide column and the second guide column are fixed on the base, the base is provided with an inverted T-shaped notch, the inverted T-shaped notch matches the shape of the metal sleeve, the upper surface of the guide block is provided with a groove, the lower surface of the upper pressure block is provided with a protrusion corresponding to the groove, and the assembly method of the multi-insert and metal sleeve is as follows: Step S1: placing the metal sleeve into the inverted T-shaped notch on the base of the assembly fixture; Step S2: inserting a plurality of ferrules into the metal sleeve, with the end surface of each ferrule facing upwards during the insertion process; Step S3: inserting the pressing block and the guide block in sequence, and during the process of inserting the guide block, accommodating the plurality of inserts into the plurality of holes of the guide block; Step S4: using an upper pressing block to perform crimping so that the ferrule and the metal sleeve are assembled together to form a molded part; The step S4 includes two crimping processes: the first crimping process is: using the upper pressing block to press the core until the core surface is flush with the guide block surface; the second crimping process is: removing the guide block and continuing to press with the upper pressing block until the core surface is flush with the metal sleeve surface.

2. A multi-insert and metal sleeve assembly jig according to claim 1, characterized in that: The plurality of holes are arranged equidistant from each other.

3. A multi-insert and metal sleeve assembly jig according to claim 2, characterized in that: The metal sleeve is provided with a plurality of through holes for accommodating the insert cores, and the plurality of holes correspond to the holes of the metal sleeve one by one.

4. The multi-insert and metal sleeve assembly jig according to claim 1, characterized in that: Four holes are arranged on the guide block.

5. The multi-insert and metal sleeve assembly jig according to claim 1, characterized in that: The lower pressing block has a through opening in the area corresponding to the insert core.

6. The multi-insert and metal sleeve assembly jig according to claim 1, characterized in that: The matching shape of the guide block and the upper pressing block is an inverted T shape.

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